In Tokyo Jekyll theme, there has a nice style portfolio section. You can change the content for that section easily form the _data/portfolio.yml file.

Here following the structure of the portfolio data :

- name: Joss Butler 
  img_src: /assets/img/portfolio/1.jpg
  project_url: https://vimeo.com/312334044
  filter_classes: 'vimeo'
  cat: Vimeo

- name: Ross Taylor
  img_src: /assets/img/portfolio/2.jpg
  project_url: https://www.youtube.com/watch?v=Amq-qlqbjYA
  filter_classes: 'youtube'
  cat: YouTube

- name: David Smith 
  img_src: /assets/img/portfolio/3.jpg
  project_url: https://w.soundcloud.com/player/?url=https%3A//api.soundcloud.com/tracks/252739311&color=%23ff5500&auto_play=true&hide_related=false&show_comments=true&show_user=true&show_reposts=false&show_teaser=true&visual=true
  filter_classes: 'soundcloud'
  cat: SoundCloud 

- name: Kiron Polard 
  img_src: /assets/img/portfolio/4.jpg
  project_url: /assets/img/portfolio/3.jpg
  filter_classes: 'image youtube'
  cat: Image

You can update the name, image URL, project URL, filter class and category name there.

We strongly recommend to use the filter_classes value in 1 word. Example : youtube not you tube. Because that filter_classes will automatically attach as the filterable ID in code.